【摘要】 EIT电极系统是整个EIT系统最为敏感和关键的部分之一。本文在线电极强制等势点模型的基础上，以复合电极为例，提出了一种电极结构及参数优化设计方法，并建立了电极结构参数优化设计仿真研究平台。可针对不同电极结构和各种参数变化给出其对EIT成像质量和检测灵敏度的影响，进行优化设计，从而为实用化EIT系统电极结构设计提供理论依据。

    【关键词 】 EIT电极;电极结构;强制等势点模型;仿真研究;优化设计

    Imitation research on optimizing design of EIT electrode system

    WANGYan，SHA Hong，REN Chao-shi.

    The Institute of Biological Medical Engineering，Chinese Medical Academy of Sciences，Chinese Union Medical University，Tianjin300192，China

    【Abstract】 The electrode system is one of the most sensitive and crucial parts in EIT system.In this paper a method for EIT electrode structure and parameter optimizing design，taking example for compound electrode，has been presented，which is based on the coercive equipotential node model of the line electrode.An imitation research plat-form of electrode structure and parameter optimizing design has been developed.By the methods，the variety influ-ences of electrode structure and parameters on reconstructed image and measurement sensitivity can be obtained.This will provide theory basis for the electrode construction optimizing design of real EIT system. ......